What is a hand valve and its functions?

A hand valve is a manually operated device used to control the flow of fluid (liquids or gases) in a system. It consists of a handle or lever that, when turned, adjusts the position of an internal mechanism to either open or close the valve. Hand valves serve to regulate fluid flow, isolate sections of a pipeline for maintenance, and control pressure. They find application in various industries such as plumbing and industrial processes.

When should you use the hand valve?

Use a hand valve when manual control of fluid flow is necessary. It's employed to start, stop, or adjust flow rates in systems requiring human intervention, such as emergencies, maintenance, or precise adjustments. Hand valves are useful when automation isn't feasible, during equipment servicing, or when immediate response to changes is needed. They offer a simple and reliable means of flow regulation in various industries.

What are the advantages and disadvatages of hand valves / manual valves?

Advantages of hand valves (manual valves) include simplicity, reliability, and cost-effectiveness. They offer precise control and immediate response during emergencies or maintenance, making them suitable for small-scale applications. However, they can be slower to operate compared to automated valves, require physical presence for adjustments, and might not be suitable for large-scale or continuous processes. Additionally, potential human error in operation and limited remote control are notable disadvantages.

What are the common materials used for valves?

Hand valves are commonly constructed from materials such as brass, stainless steel, cast iron, bronze, and plastic (such as PVC or CPVC). The choice of material depends on factors like the type of fluid being handled, pressure requirements, temperature conditions, and corrosion resistance. These materials ensure durability and compatibility with various applications across industries like plumbing, industrial processes, and water treatment.

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Hand Valves（Number of Switching Positions：3-Position Closed Center）

Hand valves are devices used to manually adjust the flow direction, pressure, flow rate or another property of a fluid (liquid, vapor or gas). Hand valve bodies are made of materials such as aluminum, steel, stainless steel, PVC and resin. Hand valves are usually connected for use with pipes containing flowing fluids using fittings made of the same material as the hand valve body. Hand valve controls are often made of a different material from the body. The controls come in forms such as knobs, handles and levers. The standard types are 2-way valves with 2 fluid input/output ports and 3-way valves with 3. They are attached in accordance with the direction of fluid flow. There are many different hand valve models designed to connect to different pipe diameters and support different operating pressure ranges. There are also different fitting types such as screw-in, flange and welded fittings, so each hand valve model should be selected to match the operating environment.

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Specification/Dimensions

Connecting Tube Diameter
- Ø4
- Ø6
- Ø8
- Ø10
- Ø12
- 1/4
- 5/16
- 3/8
- 1/2
Clear

Number of Ports
- 2-Port
- 3-Port
- 4-Port
Clear

Switching Operation
- Manual Lever
- Knob
- Selecting Knob
- Others
Clear

Effective Sectional Area(mm²)
1.48

1.84

2.5

2.58

3.4

3.5

3.8

3.87

4

5.0

5.35

5.5

6.0

6.46

6.64

7.0

7.2

7.5

7.7

8

8.1

8.2

8.3

8.4

8.5

8.6

8.67

8.7

8.8

8.9

9

9.5

10.15

10.3

10.5

11

11.5

11.99

12

12.18

12.5

12.55

12.92

13

13.10

14.39

15.4

15.6

15.68

15.7

15.8

16

16.1

16.2

16.3

16.5

16.6

16.8

16.9

17

17.1

17.4

17.5

18

18.1

18.5

20.30

20.5

22

22.99

23

23.06

23.98

24

24.5

26

27.67

30

33

34.5

35.5

36

38.19

39

39.5

40

41

44

45.5

46

47

49

51.5

53.50

54

55

55.5

57.20

62.11

62.73

64.58

68.26

70.11

79.34

83.02

88

95

101.41

114

118

140

258.30

276.75
Clear

Main Body Shape
- Block Horizontal Type
- One-Touch Fitting Type
- Pin Shape
- Others
Clear

Pipe Port Type
- M
- Rc (R)
- NPT
- G
- One-Touch Plumbing
- Others
Clear

Number of Switching Positions
- 2-Position Normally Open
- 2-Position Normally Closed
- 2-Position Exhaust
- 3-Position Closed Center
- 3-Position Exhaust Center
- 2-Position Direction Switching
- Others
Clear

Plumbing Thread Nominal
- M5
- 1/8
- 1/4
- 3/8
- 1/2
- 3/4
- 1
Clear

Plumbing Type and Direction
- Direct Side Surface
- Direct Bottom Surface
- Others
Clear

Effective Sectional Area【classification】(mm2)
5 or Less

~10

~15

~20

~30

~40

~50

~60

~70

~80

~90

~100

~200
* ~10 represents over 5, and 10 or less.
Clear

How to Mount
- Side
- Bottom
- Panel Mounting
- Others
Clear

Brand	(0) (0) AIRTAC (1) CHELIC (0) CHIYODA (0) EASUN (0) ESCO (0) FESTO (0) KOGANEI (1) NITTA (0) PISCO (0) SMC (1)
Filter By	All Sale Items
CAD	2D 3D
Days to Ship	All Same day 1 Day(s) or Less 3 Day(s) or Less 4 Day(s) or Less 5 Day(s) or Less Others

3 items

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: 30; 60; 90

Compare

Until 31/03/2025

Hand Valve VH Series

SMC

Hand Valve VH Series that allows the direction of flow to be confirmed with a glance.
[Features]
· The flow direction can be confirmed with just a glance at the direction of the handle.

From: ฿ 1,558.90
Special Price
Days to Ship: Same day

Same day

Compare

Hand Valve (2 Position 4-Port, 3 Position 4-Port) 4HV, 4HVL Series

Hand Valve (2 Position 4-Port, 3 Position 4-Port) 4HV, 4HVL Series

AIRTAC

[Features]
・ Accurate localization and improved operability.
・ Large effective distribution area, low pressure loss.
・ 2 types of mounting, panel mounting or bottom mounting, can be selected. With mounting screws for panel mounting.

From: ฿ 534.22
Days to Ship: 5 Day(s)

5 Day(s)

Compare

Hand Valves 400HV Series

KOGANEI

A hand valve ideal for switching air cylinders.
[Features]
· A slide valve structure with a manually switchable 4-port valve.
· Reliable switch by means of a rotary system (swing lever).
[Applications]
· Compatible with pneumatic equipment and production lines in a wide range of industries.

From: ฿ 3,515.28
Days to Ship: 3 Day(s)

3 Day(s)


Brand
Product Series
CAD
From
Days to Ship
Connecting Tube Diameter
Number of Ports
Switching Operation
Effective Sectional Area(mm²)
Main Body Shape
Pipe Port Type
Number of Switching Positions
Plumbing Thread Nominal
Plumbing Type and Direction
Effective Sectional Area【classification】(mm2)
How to Mount

	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare
Brand	SMC	AIRTAC	KOGANEI
Product Series	Hand Valve VH Series	Hand Valve (2 Position 4-Port, 3 Position 4-Port) 4HV, 4HVL Series	Hand Valves 400HV Series
CAD	2D / 3D	2D / 3D	2D
From	฿ 1,558.90 Special Price On Sale Until 31/03/2025	฿ 534.22	฿ 3,515.28
Days to Ship	Same day	5 Day(s)	3 Day(s)
Connecting Tube Diameter	-	-	-
Number of Ports	4-Port	4-Port	4-Port
Switching Operation	Manual Lever	Manual Lever	Manual Lever
Effective Sectional Area(mm²)	10.15 ～ 276.75	16 ～ 88	26
Main Body Shape	Block Horizontal Type	Block Horizontal Type	Block Horizontal Type
Pipe Port Type	Rc (R) / NPT / G	Rc (R)	Rc (R)
Number of Switching Positions	3-Position Closed Center	3-Position Closed Center	3-Position Closed Center
Plumbing Thread Nominal	1/4 / 3/8 / 1/2 / 3/4 / 1	1/4 / 3/8 / 1/2	1/4 / 3/8 / 1/2
Plumbing Type and Direction	Direct Side Surface / Direct Bottom Surface	Direct Bottom Surface	Direct Side Surface
Effective Sectional Area【classification】(mm2)	~15 ～ ~90	~20 ～ ~90	~30
How to Mount	Bottom / Panel Mounting	Bottom	Bottom

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FAQ Hand Valves

Question: What is a hand valve and its functions?: Answer: A hand valve is a manually operated device used to control the flow of fluid (liquids or gases) in a system. It consists of a handle or lever that, when turned, adjusts the position of an internal mechanism to either open or close the valve. Hand valves serve to regulate fluid flow, isolate sections of a pipeline for maintenance, and control pressure. They find application in various industries such as plumbing and industrial processes.
Question: When should you use the hand valve?: Answer: Use a hand valve when manual control of fluid flow is necessary. It's employed to start, stop, or adjust flow rates in systems requiring human intervention, such as emergencies, maintenance, or precise adjustments. Hand valves are useful when automation isn't feasible, during equipment servicing, or when immediate response to changes is needed. They offer a simple and reliable means of flow regulation in various industries.
Question: What are the advantages and disadvatages of hand valves / manual valves?: Answer: Advantages of hand valves (manual valves) include simplicity, reliability, and cost-effectiveness. They offer precise control and immediate response during emergencies or maintenance, making them suitable for small-scale applications. However, they can be slower to operate compared to automated valves, require physical presence for adjustments, and might not be suitable for large-scale or continuous processes. Additionally, potential human error in operation and limited remote control are notable disadvantages.
Question: What are the common materials used for valves?: Answer: Hand valves are commonly constructed from materials such as brass, stainless steel, cast iron, bronze, and plastic (such as PVC or CPVC). The choice of material depends on factors like the type of fluid being handled, pressure requirements, temperature conditions, and corrosion resistance. These materials ensure durability and compatibility with various applications across industries like plumbing, industrial processes, and water treatment.